gcc error passing const discards qualifiers Wantagh New York

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gcc error passing const discards qualifiers Wantagh, New York

Therefore to explain the error message: test.cpp:15: error: passing ‘const testing’ as ‘this’ argument of ‘int testing::test()’ discards qualifiers this refers to the object the member function (testing::test) operates on, and share|improve this answer edited May 18 '11 at 5:02 answered May 12 '11 at 5:31 Eugen Constantin Dinca 7,01111742 add a comment| Your Answer draft saved draft discarded Sign up What do I do when two squares are equally valid? contact us

c++ compiler-errors function-pointers pass-by-reference lambda share|improve this question edited Dec 20 '14 at 20:42 asked Dec 20 '14 at 20:38 barej 589622 add a comment| 3 Answers 3 active oldest votes Or even free functions. Void f() constHow is the "const" qualifier enforced when a variable is passed to a function in C or C++?What does this error mean in C?What does "const string&" in C++ asked 3 years ago viewed 32921 times active 3 years ago Linked 0 c++ passing a const object reference to a function 0 error: passing ‘const …'’ as ‘this’ argument of

Join them; it only takes a minute: Sign up error: passing 'const …' as 'this' argument of '…' discards qualifiers up vote 2 down vote favorite 1 error: passing 'const A' asked 5 years ago viewed 149771 times active 4 years ago Get the weekly newsletter! c++ share|improve this question edited May 8 '12 at 11:51 Drew Noakes 128k73394489 asked May 12 '11 at 4:52 JASON 1,85531628 7 Where is line 35 in your code snippet? asked 1 year ago viewed 8832 times active 1 year ago Linked -1 error: passing (const A) as (this) 3 error: passing 'const …' as 'this' argument of '…' discards qualifiers

const Cache *this_cache; c = (a==b)?my_cache:not_cache; c->write(memory_access,cl); The above line is giving me following error "passing ‘const Cache’ as ‘this’ argument of ‘bool Cache::write(const MemoryAccess&, CacheLine&)’ discards qualifiers [-fpermissive]." the this So VC++ 2008 Dinkumware implementation is faulty. Originally Posted by Salem You mean it's included as a crutch to help ancient programmers limp along without them having to relearn too much. To solve this, decide whether the testing::test function should ever need to modify the object it is called on (the way it is written now it does not, as all it

const_iterator Container Const iterator used to iterate through a set. (Iterator and const_iterator are the same type.) On the other hand VC++ 2008 Express compiles your code without complaining that you're Karger's Algorithm question How much is "a ladleful"? i solved the error by placing a constant in front of the overloading operator. Search Engine Optimisation provided by DragonByte SEO v2.0.32 (Pro) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd. トップ «前の日記(2009-03-24) 最新 次の日記(2009-03-27)» 気が付けば研究室にいるぞのさんのブログ 2008|09|10|11|12| 2009|01|02|03|04|05|06|07|08|09|10|11|12| 2010|01|02|03|04|05|06|07|08|09|10|11|12| 2011|01|02|03|04|05|06|07|09|10|11| 2009-03-25 無糖か微糖か。

more hot questions question feed lang-cpp about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation Linked -1 passing ** as ‘this’ argument of *** discards qualifiers error 25 Why does std::set seem to force the use of a const_iterator? 3 C++ struct - Passing const as Join them; it only takes a minute: Sign up error: passing ‘const …'’ as ‘this’ argument of ‘…’ discards qualifiers [duplicate] up vote 7 down vote favorite 1 This question already Since method write is not declared as const, it has non-const this pointer accessible from its body requiring const qualifier of c to be discarded.

more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Outside of your DOS world, your header file is meaningless. 05-29-2008 #8 dingobiatch View Profile View Forum Posts Registered User Join Date May 2008 Posts 7 There has to be another If I need to include more information to figure this out, just tell me. c probably has type const Cache*.

but not for >=, <=, ==, != overload operators. //function was declared in stockType.h and implemented in stockType.cpp bool operator<(const stockType& stock)//symbol is a string { return (symbols < stock.symbols) } Flow Chart with tikzpicture: particular tipes of arrows Developing web applications for long lifespan (20+ years) Why did my electrician put metal plates wherever the stud is drilled through? What do I do when two squares are equally valid? I have a base class, graphobj, which has subclasses triangle, quad, etc.

Void f() constHow is the "const" qualifier enforced when a variable is passed to a function in C or C++?What does this error mean in C?What does "const string&" in C++ If it should not, then mark it const, so that it can be called on const objects as well: class testing{ int test1() const; // ... } int testing::test() const { Since the test() method doesn't actually change any data, best practice is to set it const, as follows: class testing{ int test() const; int test1(const testing& test2); }; int testing::test() const I'm getting this error: graphobj.h: In member function void GraphObj::fill(Image&, Vec3f&, Vec2f): graphobj.h:13: error: passing const Vec3f as this argument of int Vec3f:perator!=(const Vec3f&) discards qualifiers This is the graphobj code:

Is there any job that can't be automated? My question is why did i have to put a constant in front of the overload operator for > and <. How much interest should I pay on a loan from a friend? I've been looking up how to fix this error, apparently it has to do with functions which should be declared const since something they take is const.

What do I do when two squares are equally valid? The const tells the compiler that nothing will change inside that function. With the passing of Thai King Bhumibol, are there any customs/etiquette as a traveler I should be aware of? share|improve this answer answered Feb 15 '09 at 6:46 Himadri Choudhury 6,19642538 add a comment| up vote 1 down vote testing::test1(const testing& test2) is expecting the passed object to be const,

Originally Posted by Adak io.h certainly IS included in some modern compilers. It is unspecified whether or not iterator and const_iterator are the same type. Thread Tools Show Printable Version Email this Page… Subscribe to this Thread… Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode 05-29-2008 #1 dingobiatch View Profile View Forum Posts Not the answer you're looking for?

Is it right? Is there some other reason for the error in this case ? void proces(const char *&woord,int &getal){Related QuestionsWhy discarding the const qualifier in C results only in a warning from GCC? How much interest should I pay on a loan from a friend?

Each subclass calls a function, fill, which takes a few parameters, one of which is a Vector3f. But such a variable is not being passed here. Hide this message.QuoraSign In Error Messages C++ (programming language) Learning to Program Programming Languages Computer ProgrammingWhat does this means in c++: error: passing ‘const Report’ as ‘this’ argument of ‘void Report:display() You should add const to all member functions that don't modify member.

In it, you'll get: The week's top questions and answers Important community announcements Questions that need answers see an example newsletter By subscribing, you agree to the privacy policy and terms Why does this execution plan have Compute Scalars? discards qualifiers Oct 31, 2011 at 12:07pm UTC MCJamaica (24) Hi everybody. Originally Posted by Salem You mean it's included as a crutch to help ancient programmers limp along without them having to relearn too much.

I doubt it because in most of the getters I write, I don't add const modifiers to it. –Mahesh May 12 '11 at 5:01 @Fred - ideone.com/WXr9z –Mahesh May C++ 0x draft) says (tnx to @Xeo & @Ben Voigt for pointing that out to me): 23.2.4 Associative containers 5 For set and multiset the value type is the same as Why is water evaporated from the ocean not salty? Generated by tDiary version 3.1.2 Powered by Ruby version 1.8.7-p302 Search: Forum General C++ Programming error: passing 'const ...' as 'this' arg error: passing 'const ...' as 'this' argument of

So when you try to call getId() with the const object the compiler detects a problem, namely you're calling a non-const member function on const object which is not allowed because Browse other questions tagged c++ compiler-errors const or ask your own question. more hot questions question feed lang-cpp about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation